net/packet: clear RX owner on VNET header error
Summary
| CVE | CVE-2026-98233 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-06 09:18:10 UTC |
| Updated | 2026-10-06 09:18:10 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: net/packet: clear RX owner on VNET header error Commit 61fad6816fc1 ("net/packet: tpacket_rcv: avoid a producer race condition") added rx_owner_map and made tpacket_rcv() claim a V1 or V2 ring slot before converting the virtio-net header. If the conversion fails, the drop path leaves the slot claimed. With a one-frame TPACKET_V2 ring, an unsupported UDP GSO packet leaves the only slot unavailable, so the ring also drops the next valid packet. Clear the ownership bit on this error path. TPACKET_V3 already clears its block state here. |
Risk And Classification
EPSS: 0.002200000 probability, percentile 0.113620000 (date 2026-10-06)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 bb10a0084c03a94364aeec542beddc5d49b59f59 git | Not specified |
| CNA | Linux | Linux | affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 b8c0cb3069058c2d67b5c7c833b2833381ecffdc git | Not specified |
| CNA | Linux | Linux | affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 2daa618e7ff19eefcbda281bc4c5998c4140f9cf git | Not specified |
| CNA | Linux | Linux | affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 23cd30498891d29a69ec9b75bd92f8a0f21f1342 git | Not specified |
| CNA | Linux | Linux | affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 49a48a5aaf85fe69d2dc3fb334b4854fadf44e39 git | Not specified |
| CNA | Linux | Linux | affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 805edbdcb8681da5f7ee43b3c3c809f7a8c31208 git | Not specified |
| CNA | Linux | Linux | affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 693209a237fc548791cf402441db8b68d1da7d38 git | Not specified |
| CNA | Linux | Linux | affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 33ff111d7ba3beb86e28938d6382bb5beabd865a git | Not specified |
| CNA | Linux | Linux | affected 2975472e042e0bbfeeabddc5023cb8c011ec5a07 git | Not specified |
| CNA | Linux | Linux | affected 6fb0e4385928900ccb8697748555b3f54bba5193 git | Not specified |
| CNA | Linux | Linux | affected 86137342fd4cf52882842aa8d1318b2661f08e8a git | Not specified |
| CNA | Linux | Linux | affected b06e4d3ed4044c2facf10a511d809f9aa29d960e git | Not specified |
| CNA | Linux | Linux | affected 4.14.175 4.15 semver | Not specified |
| CNA | Linux | Linux | affected 4.19.114 4.20 semver | Not specified |
| CNA | Linux | Linux | affected 5.4.29 5.5 semver | Not specified |
| CNA | Linux | Linux | affected 5.5.14 5.6 semver | Not specified |
| CNA | Linux | Linux | affected 5.6 | Not specified |
| CNA | Linux | Linux | unaffected 5.6 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.271 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.222 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.189 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.158 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.112 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.54 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2.8 7.2.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.3-rc4 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/2daa618e7ff19eefcbda281bc4c5998c4140f9cf | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/23cd30498891d29a69ec9b75bd92f8a0f21f1342 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/b8c0cb3069058c2d67b5c7c833b2833381ecffdc | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/33ff111d7ba3beb86e28938d6382bb5beabd865a | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/bb10a0084c03a94364aeec542beddc5d49b59f59 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/805edbdcb8681da5f7ee43b3c3c809f7a8c31208 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/49a48a5aaf85fe69d2dc3fb334b4854fadf44e39 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/693209a237fc548791cf402441db8b68d1da7d38 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.